长周期地震动作用下RC框架-剪力墙剧场结构弹塑性响应分析  

Elasto-Plastic Response Analysis of RC Frame-Shear Wall Theatre Structures Under Long-Period Ground Motions

作　　者：王超群 汪学智 田佳甲 吴桐 王博 WANG Chaoqun;WANG Xuezhi;TIAN Jiajia;WU Tong;WANG Bo(Shaanxi Zhong Hai Jian Engineering Design Institute Co.Ltd.,Xi’an 710055,China;School of Civil Engineering,Chang’an University,Xi’an 710061,China)

机构地区：[1]陕西中海建工程设计院有限公司,西安710075 [2]长安大学建筑工程学院,西安710061

出　　处：《结构工程师》2023年第2期73-80,共8页Structural Engineers

基　　金：国家自然科学基金面上项目(51978076)。

摘　　要：剧场结构为一种典型的功能复杂、楼板局部不连续且跨度较大的结构。为了研究RC框架-剪力墙剧场结构在长周期地震动作用下与普通地震动作用下的响应差异,以某剧场为例,选取14条典型长周期地震动与7条普通地震动进行弹性及弹塑性时程对比分析。结果表明:长周期地震动作用下结构不能满足小震弹性的需求,观众厅、舞台楼板大开洞周围剪力墙及框架柱损伤较为严重,附属层以上竖向构件的损伤大于附属层以下。最后,提出了考虑长周期地震作用时的合理控制指标,并针对性地提出了结构的抗震措施建议。Theatre is a typical structure with complex functions,floor discontinuous and large span.In order to study the response differences of RC frame-shear wall theater structure under the long-period ground motions and ordinary ground motions,taking a theater as an example,this paper selects 14 typical long period ground motions and 7 ordinary ground motions to conduct structural elastic and elasto-plastic time history comparative analysis.The results show that the structure can’t meet the elastic requirements under the long period ground motions,the damage of shear wall and frame column around the gaping holes in the floor of auditorium and stage floor is serious,the damage degree of vertical members above the auxiliary floor is greater than that below the auxiliary floor.At last,reasonable control indexes and seismic measures of the structure considering long-period ground motions are proposed.

关 键 词：长周期地震动 剧场 RC框架-剪力墙结构 时程分析 抗震措施 

分 类 号：TU313[建筑科学—结构工程] TU398.2